Voltage and current pegulator for alternating-current circuits



Aug. 5, 1930. A., SOULIER 1,772,327

VOLTAGE? AND CURRENT REGULATOR FOR ALTERNATING CURRENT CIRCUITS Filtd Sept. 27, 1928 E en/fir: Wmd Sower,

Patented Aug. 5, 1930 i v 7 UNITED STATES PATENT O FFlCE ALFRED SOULIER, F CACHAN, FRANCE VOLTAGE AND CURRENT REGULATOR FOR ALTERNATING-CURRENT CIRCUITS Application filed September 27, 1928, Serial No. 308,777, and in Belgium October 4, 1827.

The present invention relates to voltage vector current by 90. The vector tension and current regulators for alternating cur- Us and U0 are, therefore, in opposition. rent circuits. I The relation between the potential being One, of the objects of the invention is to supplied Um and potentials Us and U0 is the provide a device capable of transforming a following:

variable alternatin current potential into a potential which is gubstantially constant. U8 U0 A further object is to provide means for Let it be supposed, now, that the potential regulating a source of current of variable of the main or supply circuit Um varies.

i0 amperage. Since condenser c has a fixed value and sole- 60 Still further objects will appear in the noid b has a movable core, there will be a course of the detailed description now to be variation of the difference of potential across given with reference to the accompanying the terminals of the solenoid due to the indrawings in which and-out movement of the core tending to Fig. 1 is a diagram of one constructive emequilibriate the potential of the main cirt5 bodiment of the invention; cult.

Fig. 2 is a vector diagram showing the The potential across the terminals of the manner in which the circuit shown in Fig. l Condenser will remain substantially constant, operates. since any variation in the potential of the Referringto the variousfigures ofthe drawmain circuit will be balanced by a corre- 7 ing, f, f are the terminals of an alternating spondl g variation in the counter electrocurrent circuit in which the voltage values m tlve OICe Of self-induction. That is to vary between certain limits, a vertical solesay: noid provided with terminals 0 e ,b, a vertical iron core mounted on a resilient system b adapted to compensate at least part of the It 18 o be n ed that the functioning of weight of core 6 and to act as a sort of elastic the y m 18 en ed by the nature of the Support f th l tt d l d ith condenser. Thus it is found that the best means for instance a dash-pot 19 adapted to results are ohtalhed Wlth electrolytlc prevent i di l ib ti f core b densers and this appears to be due to the fact so a condenser connected across a pair of termi- P w an Q Q F Y condenser Work nals 41 d leading to the terminals of conm hear hhhtlhg Voltage y lhcrea se Stant pOtentiaL in potential tends to produce electrolysis. The characteristics of the solenoid and its actlve curhent whlch h Permlts the core and of condenser c are so chosen that f i regulatdon to Obtamed' the variation of potential across 7, f cause regulatmg devlce may be combmed I t with radioamplifiers to give more powerful 32 5 a zg i gg gi i 3 53 effects than those obtainable with transform- I l t tem so that the potential across terminals gif g gg igg gig g gi g Zg 21132; Condenser remams substantlany thermionic device wherein a constant heatin current is desired. A lied to hotom- In the Vectoh dmgmm f f et rs, it permits a constziii t voltagli to be the mp g I 13 taken Onglh- Slhce h maintained across the terminals of the lamps 45 solenoid and the condenser are mounted in b i compared d it CGIlSiderable Varia series they will be traversed by the same curtion i th ain urr nt u ly ir it (40- rent I. If the resistance of the solenoid and 50%). of the condenser are neglected, the potentials What I claim is Us and U0 respectively of the latter elements In combination with a circuit carrying 50 will be diplaced in advance and behind the an alternating-current of varying poten- Us- Um Uc=constant.

my hand.

ALFRED SOULIER. 

